Classification
515 - Analysis
111
519 - Probabilities & applied mathematics
87
330 - Economics
54
005 - Computer programming, programs & data
52
512 - Algebra
52
621 - Applied physics
52
620 - Engineering & allied operations
49
530 - Physics
45
510 - Mathematics
36
006 - Special computer methods
35
518 - Numerical analysis
27
658 - General management
27
516 - Geometry
26
300 - Social sciences
25
332 - Financial economics
24
001 - Knowledge
20
500 - Natural sciences & mathematics
20
541 - Physical chemistry
20
514 - Topology
19
610 - Medicine & health
18
040 - [Unassigned]
17
511 - General principles of mathematics
16
004 - Data processing & computer science
15
531 - Classical mechanics; solid mechanics
14
539 - Modern physics
12
003 - Systems
11
520 - Astronomy & allied sciences
9
617 - Surgery & related medical specialties
9
629 - Other branches of engineering
9
338 - Production
8
384 - Communications; telecommunication
8
540 - Chemistry & allied sciences
7
615 - Pharmacology & therapeutics
7
624 - Civil engineering
7
641 - Food & drink
7
664 - Food technology
7
670 - Manufacturing
7
000 - Computer science, information & general works
6
160 - Logic
6
536 - Heat
6
548 - Crystallography
6
158 - Applied psychology
5
333 - Economics of land & energy
5
537 - Electricity & electronics
5
551 - Geology, hydrology & meteorology
5
613 - Personal health & safety
5
616 - Diseases
5
650 - Management & auxiliary services
5
745 - Decorative arts
5
140 - Specific philosophical schools
4
more ...